Abstract: From the engineering-geological data of marine soft soil in Lianyungang, statistical characteristics of physical and mechanical indexes of marine soft soil in study region are analyzed systematically in comparison with physical and mechanical indexes of soft soil in other coastal regions of China, and then the characteristics of shear strength, consolidation deformation and creep of the marine soft soil are studied. The relationship between these indexes are obtained by using linear regression analysis. Finally, some methods for treatment of the soil are put forward.